Tailfin Aeropack: The fastest way to carry gear on your bike. A rolltop waterproof bicycle bag and rack that's super light, ultra stable and fits virtually any road, gravel & mountain bike. The Tailfin AeroPack is a product family of bike bags and racks that allow you to carry your gear in a totally new way. With three models, they let you carry your gear faster, further and with less hassle - whatever bike you ride. See more on their Kickstarter page.